package com.terra.system.helper;
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import com.baomidou.mybatisplus.core.mapper.BaseMapper;
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import com.terra.system.mapper.all.BasicMapper;
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import com.terra.system.mapper.all.GeomBaseMapper;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import org.springframework.aop.support.AopUtils;
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import java.lang.reflect.Type;
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/**
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* 类帮助类
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* @author WWW
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*/
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public class ClassHelper {
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private final static Log log = LogFactory.getLog(ClassHelper.class);
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/**
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* 根据类名创建实例
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*
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* @param className 类名
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* @return 实体
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*/
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public static Object createInstance(String className) {
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try {
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Class clazz = Class.forName(className);
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Object obj = clazz.newInstance();
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return obj;
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} catch (Exception ex) {
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log.error(ex.getMessage(), ex);
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return null;
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}
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}
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/**
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* 获取Bean
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*
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* @param className 类名
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* @return Bean
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*/
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public static Object getBean(String className) {
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try {
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Object obj = SpringContextHelper.getBean(className);
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return obj;
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} catch (Exception ex) {
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log.error(ex.getMessage(), ex);
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return null;
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}
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}
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/**
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* 获取父Mapper
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*
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* @param name Mapper名
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* @return BaseMapper
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*/
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public static BasicMapper getBasicMapper(String name) {
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if (StringHelper.isEmpty(name)) {
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return null;
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}
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Object obj = getBean(name.trim() + "Mapper");
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if (!(obj instanceof BasicMapper)) {
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return null;
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}
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return (BasicMapper) obj;
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}
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/**
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* 获取空间父Mapper
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*
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* @param name Mapper名
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* @return GeomBaseMapper
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*/
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public static GeomBaseMapper getGeoBaseMapper(String name) {
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if (StringHelper.isEmpty(name)) {
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return null;
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}
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Object obj = getBean(name.trim() + "Mapper");
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if (!(obj instanceof GeomBaseMapper)) {
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return null;
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}
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return (GeomBaseMapper) obj;
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}
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/**
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* 获取类名
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*
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* @param baseMapper 父Mapper
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* @return 类名
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*/
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public static String getClassName(BaseMapper baseMapper) {
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Type[] genericInterfaces = AopUtils.getTargetClass(baseMapper).getGenericInterfaces();
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return genericInterfaces[0].getTypeName();
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}
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/**
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* 根据Mapper类名获取实体类的Class
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*
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* @param className Mapper类名
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* @return 实体类的Class
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*/
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public static Class getEntityClass(String className) {
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try {
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className = className.replace(".mapper", ".entity").replace("Mapper", "Entity");
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Class clazz = Class.forName(className);
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return clazz;
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} catch (Exception ex) {
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log.error(ex.getMessage(), ex);
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return null;
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}
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}
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/**
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* 根据BaseMapper创建实体类
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*
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* @param baseMapper 父Mapper
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* @return 实体类
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*/
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public static Object createEntityByMapper(BaseMapper baseMapper) {
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String className = getClassName(baseMapper);
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className = className.replace(".mapper", ".entity").replace("Mapper", "Entity");
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return createInstance(className);
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}
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}
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